Belt cutting, punching, and grooving device



Oct. 7, 1.947. l (3,` ROTHE I BELT CUTTING, PUNCHING, AND GROOVINGDEVICE Filed May 31, 1945 Y 2 Sheets-Sheet :L4

' wwf/Wwf. j /r 3 y George /iolf/ze Oct. 7, 1947. G. ROTHE 2,428,742

'BELT CUTTING, PUNGHING, AND GROOVING DEVICE Filed May 5l, 1945Sheets-Sheet 2 .afro/mf):

Patented Oct. 7, 1947 `BELT CUTTING, PUNCHING, A-AND `GROOVING DEVICEGeorge Rothe, Council Bluffs, 'Iowa :Application May 31, 1945, ASerialNo.596,875

'7 Claims. 1

This invention relates to a belt cutting, punching and groovingdevicefor use in cutting and punching orv cutting, punching and groovingthe ends of belts to prepare-them for the application of fasteningmeanstoy connectvadjacent ends of beltsV together.

One object of-the--inventionis to provide a simple, reliable'and efcienttype of vdevice wherevby an end-of acogor other belt -may beclarnped andrmlyffheldfand thentrulyfsquare` cut and punched or piercedfor-thereception of fastening vmeans `iniaequiclaxeady and convenient manner.

Another object of .theinvention is to provide a devicewherebyan end ofaastraight or V-belt may be. cut,.punchedv and grooved for the receptionof afastener employed tocouple beltends of this-kind together.

The invention consists-.ofthe novel'features of construction,combination and Yarrangement of parts, hereinafter fullydescribe'd and`claimed,

and as rshownin 'theraccompanying drawing,V in

which: t

4Figure l is a'front viewof my invention.

Figure 2 is a sectionorv line `2-2 `of Figure; 1. Figure 3 isa viewsimilarto Figure 1 with variousparts omitted `to clearly illustrate thedevice.

Figure 4 is .a rear view.. of thedevice.

Figure-5isasection on line5-'5 of Figure 1.

Figure is a planview ofthebed plate, and

Figure f7 isa.I rear elevation of movingknife and bar.

Referring now lmore-particularly-to the drawing, -I designates `a baseplate, adapted to rbe secured to or supported on a work bench or othersuitable support, and-which has yformed thereon orsecuredtheretoa be'dplatezlhaving plunger receiving openings .or recesses Sthereinqand which'serves as a support for the -belt to be` treated to lrest upon.

.projectingaboveits top edge l.

The upright 4 is fitted atone of its lower end cornersbetween apair-ofmounting'lugs 8 projecting'upwardlylfrom the base I, and-is pivotedtosaid lugs-by a pivot.pin,vrivet or bolt 9. The opposite -lower endcorner-of vthe upright is adaptedto't down between apair of ykeeper lugsII). projecting upwardly from the base I and said end corner and lugsare apertured for the passage of a fasteningpin or bolt I I whereby theupright `is adapted to Vbe secured in normal position to the plate I.The removal of the pin Il adapts the uprightto be swung upward on theApivot 9 to permit the belt to be treated to be rested face downward onthe bed plate 2, after which by swinging the upright downward to normalposition and' re-applying the bolt I I the upright will be secured innormal' workingposition and will operate to hold the belt down and rmlyclamped against plate 3 while it is being operated upon. After the beltis operated upon it may be released bylswinging the upright upwardly, aswill be readily understood.

Formed in the upright 4 is a slot having a truncated triangular or`inverted V-shaped belt -receivingjportion I2, which opens at its basethrough the lower edge of the upright,"and hav- 'ing an upper guideportion I3 opening at its lower end into the portion I 2 andcommunicating at its upper en d with a groove I4 formed in one side 0fthe upper portion 'of the upright. The slot 'portion' I2 is adapted toaccommodate a V or other shaped belt of suitable width whichrestsuponthe `plate 2'and againstthe -opposed end -walls of V:the said 'slotport-ion I2,` while the slot 'portion'- I3 and groove I 4 provide forthe reception andup y'and down guiding movements of 'a tool *carryinghead I5fan`d its shank orV push and pull arm. I6; whichA latter projectsupwardV beyond the groove. A cover platef I1 is provided to close the14openwside of the groove at one side -of the upright and an angulargaugeI or abutment plate I8 may be provided at 'one side vof the uprightand at the .end of the slot portion I2 adjacent the pivot 9 to gauge andsupport the belt against transverse -movement'w-hile -it is being cutandpunched or cut, punched` and -grooved.

The head I5 projects beyond opposite sides 'of the upright andhasattached thereto at one side -af cutter-blade I9 and carries at itsopposite side -a pair offplungers orpiercers 20 which on a downwardmovement ofthe-headoperate to cut a clamped belt squarely and tc formclear holes therein 'for the reception of fastening means. The piercerspass-down through vthe belt and into the recesses or holes 3 in theplate 2 to form clear holesin the belt. They fit at their upper ends inopenings in the head I5 and are detachably ysecured thereto by clampingscrews 2 I The shank oryarm Iltis coupled by a. link 22 to an eccentricvor crank projection 23 at one end of an operating lever24lwhichis-pivoted -at such end as shown ping' device;

- any of the advantages-of the-invention.

at 25 to the extension, whereby by downward and upward swingingmovements of the lever the cutter and punchers may be advanced for aWorking operation and thereafter retracted.

The device as thus far described is adapted 5 for cutting and punchingbelts, such as cog belts, but I also provide a means for grooving aswell as cutting other belts, such as straight type V- belts in which .acut groove will serve the same purpose as the cog of a cog belt so faras cooperation with a coupling` is concerned. As shown,l a guide bar 26extends across Vthe ,slot l2 and 'Y longitudinally at the side of theupright at which the punches are arranged. This bar is detachy ablysecured in position by fastenings 21 and 15 has a recess 28 in its loweredge for passage o f the belt and is formed with a longitudinal guideslot 29. A holder 30 is tted to slide in said slot and carries agrooving blade 3l which is secured to the holder by a headed screw 32which 20 passes throughand is movable in ythe slot and also serves tomount the holder for sliding movement on ,the bar. An operating lever 33is pivoted, as shown at 34, to the bar and to a link 33 which in turn ispivoted to the holder 30 "25 by means of screw 32 to advanceand retractthe groovingblade3l. Y Y

The operation of cutting and punching'a cog belt is as follows: Y

The belt is placed top side downj(broaa side) f* :3oV

on the horizontal base. The vertical base Vis locked' in place over thebelt. This Voperation secures the belt at righi; angles to the verticalbase.V The Y lever is lowered, forcingthe push-,-

Vpull arm down. yTo the push-pull arm are sse-" "except that after thevertical base lis locked in place'over the belt, the small leverftowhich the grooving knife is attached is moved from one side of thevertical base to the opposite, thus cutting a small groove in the bottomof the belt. This small groove will serve the same purpose, as far asthe couplings are concerned, as the cogV in the Daytonbeits. That is,'it win anew the lip of the coupling to serve its function as a grip-After the groove is cut, the remaining opera.- tionsY are identical withthose listed for the cog Ablt. Y

From the foregoing-description, taken in connection with the drawings,Vthe construction and mode of use of my improved belt cutting, punchingand grooving device will be readily understood V6 by those versed intheart, and it will be seen that the invention .provides Va device wherebya W belt may be easily and conveniently cut and punched or cut, punchedand -grooved in an accurateand time-saving manner.` While the'struc-j'ture disclosed-is preferred, it will, of course, beV

Y understood that changesin the form, construction and arrangement ofparts `may be made without 'departing-from thespirit or sacrificingHaving thus described my invention, I claim:

1. A belt cutting and punching device comprising a base, an uprightsupporting and clamping member pivotally mounted on the base on ahorizontal transverse axis for swinging movements into and out of beltclamping position, a vertically movable slide mounted on said member,belt cutting and Ypunching elements mounted on said slide, a leverpivotally mounted fat* one end at the top of the slide and having alateral crank ing andvreleasing member rising from the base andpivotallyY connected thereto for swinging movements into and out ofbelt-clamping position, said member having a clamping surface and` aslot 'opening therethrough to receive a belt and` to adapt the belt tobe clamped between saidV vclamping surface and the base, belt-cuttingand punching elements 'mounted on'said member-for vertical movementstoward and from the baise,

Y and means for operatingl said elements.

3. A belt cutting and punching device comprising a base, an uprightsupporting and belt-clampingY and releasing member rising from the base,

" said member having a clamping surface and a slot opening,Vtherethrough to receive a belt and to adapt the belt to beclampedbetween said clamping surface and the base, andsaid member beingpivotally connected adjacent one end of fits clamping surface to thebaseA for swinging movements into and out of belt-clamping position,means for securing saidmember of its-clamping surface opposite end inbelt clamping position relative to the base, belt-cutting `and punchingelements mounted onpsaidmemb'er for vertical movements towardiand'ifromthe base, yand means foroperating said elements.

fi. A belt cutting, punching and grooving def-Y. Vvice comprising abase, a supporting and beltclamping and releasing memberpivotally'mounted on `the base for swingingmovements into and. outofbelt-clamping position and having a clamp- ',ing surface to vclampthebelt againstr the base, Y Y

` belt cutting and punching elements movably .mountedV on said Vmember,Ymeans for operating said elements, a transverse guide carried by said 0member and arranged adjacent to and parallel with lits clamping surface,a belt grooving element Ymounted on saidguide for reciprocating move-.ment in'ahorizrontal plane across-:the clamped belt, and means foroperating the grooving element. ,Y f i V i Y .1

` 5. A belt cutting andV punching device comprising a base, an upright'supporting andl beltclampingl and releasing member rising fromthe Ybase, and'pivotally connected at one end to the base for swingingmovements into and out'of-belt 1 clamping position, said member havingalverti- Y cal slot opening through its base to receive a belt and toadapt the belt to be clamped'between the Y member and the base, meansfor securing said memberl at its`opposite'end in belt-clamping positionto the base, a tool carrying head vertically Vmovable in the slot, beltcutting'and punching Y tools mounted on said head for movements.Ytoandoperating means ward and from the' base, connected tothe head. v j.V 6. A belt cutting, punching and grooving device comprising a base, a'supporting fand belting surface to cla-mp the belt against the base,said member having a Vertical slot opening through its clamping surfaceto receive a belt and to adapt the belt to be received therein andclamped between the member and the base, a. tool carrying headvertically movable in the slot, cutting and punching tools carried bythe head, means for operating said head, a guide carried by the memberand extending across said slot adjacent to said clamping surface, a beltgrooving element mounted on said guide for reciprocating movement in aplane parallel with the clamping surface across the clamped belt, andmeans mounted on said member for operating the grooving element.

7. A belt cutting and punching device comprising a base, an uprightsupporting and clamping member pivotally mounted on the base for swing--ing movements into and out of clamping position and having a clampingsurface to clamp the belt against the base, means for securing the samein clamping position, vertically movable belt cutting and punchingelements mounted on said member, an operating lever pivotally mounted onthe member, and a crank and link connection between said member andcutting and punching elements.

GEORGE RlOTHE.

REFERENCES CITED The following references are of record in the iile ofthis patent:

UNITED STATES PATENTS Number Name Date 1,736,559 Vollrath Nov. 19, 19292,031,977 Olsen Feb. 25, 1936 2,248,642 Phillips July 8, 1941 1,089,587Rowe Mar. 10, 1914 2,248,111 Nassimbene July 8, 1941 1,808,041 Johnson,Jr., et al. June 2, 1931 FOREIGN PATENTS Number Country Date 12,702Great Britain May 31, 1913

